Light pink blood at 10dpo

Jada • USMC WIFE ❤️🇺🇸 22 🤰 with #1 baby boy💙 MF infertility. Hashimotos hypothyroidism, polyps,

So i am 10 dpo and i went to the bathroom and when i wiped i had very light.pink blood. My period.is 4.days away. Could it be implication bleeding pregnancy tests were negative but it wasnt FMU. My husband and i BD on ovulation day.